All-optical switching due to state-filling in quantum dots

A. Deepthy; E.A. Patent; E.W. Bogaart; G. Zhao; J.E.M. Haverkort; J.H. Wolter; J.J.G.M. van der Tol; P.J. van Veldhoven; Q. Gong; R. Noetzel

arxiv: cond-mat/0410440 · v1 · submitted 2004-10-18 · ❄️ cond-mat.mtrl-sci

All-optical switching due to state-filling in quantum dots

R. Prasanth , J.E.M. Haverkort , A. Deepthy , E.W. Bogaart , J.J.G.M. van der Tol , E.A. Patent , G. Zhao , Q. Gong

show 3 more authors

P.J. van Veldhoven R. Noetzel J.H. Wolter

This is my paper

classification ❄️ cond-mat.mtrl-sci

keywords switchingall-opticaldotsingaaspprobequantumstate-fillingabsorbed

0 comments

read the original abstract

We report all-optical switching due to state-filling in quantum dots (QDs) within a Mach-Zehnder Interferometric (MZI) switch. The MZI was fabricated using InGaAsP/InP waveguides containing a single layer of InAs/InP QDs. A 1530-1570 nm probe beam is switched by optical excitation of one MZI-arm from the top. By exciting below the InGaAsP bandgap, we prove that the refractive index nonlinearity is only due to the QDs. The switching efficiency is 2 rad/(microW absorbed power). Probe wavelength insensitivity was obtained using a broad distribution of QDs.

This paper has not been read by Pith yet.

All-optical switching due to state-filling in quantum dots

discussion (0)